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PTP Online Top > Supplement (2001) > No.141

Prog. Theor. Phys. Supplement No.141 (2001) pp. 285-327

[ Full Text PDF : FREE ACCESS (1313K) ]

Diabatic Mean-Field Description of Rotational Bands in Terms of the Selfconsistent Collective Coordinate Method

Yoshifumi R. Shimizu and Kenichi Matsuyanagi*

Department of Physics, Kyushu University, Fukuoka 812-8581, Japan
*Department of Physics, Graduate School of Science
Kyoto University, Kyoto 606-8502, Japan

(Received July 31, 2000)

Abstract:

Diabatic description of rotational bands provides a clear-cut picture for understanding the back-bending phenomena, where the internal structure of the yrast band changes dramatically as a function of angular momentum. A microscopic framework to obtain the diabatic bands within the mean-field approximation is presented by making use of the selfconsistent collective coordinate method. Applying the framework, both the ground state rotational bands and the Stockholm bands are studied systematically for the rare-earth deformed nuclei. An overall agreement has been achieved between the calculated and observed rotational spectra. It is also shown that the inclusion of the double-stretched quadrupole-pairing interaction is crucial to obtain an overall agreement for the even-odd mass differences and the rotational spectra simultaneously.


URL : http://ptp.ipap.jp/link?PTPS/141/285/
DOI : 10.1143/PTPS.141.285

[ Full Text PDF : FREE ACCESS (1313K) ] Citation:

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